One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,8)(4,5)(6,7)(9,10,13,16)(11,12,15,14)(17,18,23,21)(19,24,22,20)(1,3,6,4)(2,5,7,8)(9,10)(11,14)(12,15)(13,16)(17,19,23,22)(18,24,21,20)(25,26,29,28)(27,31,32,30)(2,7)(3,4)(9,11,13,15)(10,14,16,12)(17,20)(18,22)(19,21)(23,24)(25,27,29,32)(26,30,28,31)(1,4,6,3)(2,5,7,8)(9,11)(10,14)(12,16)(13,15)(17,21,23,18)(19,24,22,20)(1,5)(2,4)(3,7)(6,8)(9,12,13,14)(10,15,16,11)(17,22,23,19)(18,24,21,20)(25,28,29,26)(27,31,32,30)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.